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rtx-cfd legacy GPU modules: cudarc 0.18 API — unsafe launches, the stream accessor, memcpy_htod argument order; the renamed k-ε constants and ::standard(); get_module clones; CfdConfig test literals take ..Default
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This commit is contained in:
Omar Sobh
2026-09-16 07:16:39 -05:00
parent de435eb91c
commit 5e402918bb
6 changed files with 432 additions and 378 deletions
Download Patch File Download Diff File Expand all files Collapse all files
crates/specialized/rtx-cfd/src/turbulence/k_epsilon_gpu.rs
+112 -102
View File
@@ -68,7 +68,7 @@ impl KEpsilonGpuModel {
Ok(Self {
kernel_manager,
constants: KEpsilonConstants::default(),
constants: KEpsilonConstants::standard(),
k_epsilon_module: None,
gpu_buffers: None,
})
@@ -89,7 +89,7 @@ impl KEpsilonGpuModel {
fn load_k_epsilon_kernels(&mut self) -> CfdResult<()> {
// In real implementation, would compile or load PTX for k-epsilon kernels
// For now, load from kernel manager
self.k_epsilon_module = Some(self.kernel_manager.get_module("k_epsilon_kernels")?);
self.k_epsilon_module = Some(self.kernel_manager.get_module("k_epsilon_kernels")?.clone());
Ok(())
}
@@ -140,12 +140,12 @@ impl KEpsilonGpuModel {
let epsilon_host = vec![epsilon_init; n];
self.kernel_manager
.stream
.memcpy_htod(&mut buffers.k, &k_host)
.stream()
.memcpy_htod(&k_host, &mut buffers.k)
.map_err(|e| CfdError::gpu_error(&format!("Failed to copy k to GPU: {}", e)))?;
self.kernel_manager
.stream
.memcpy_htod(&mut buffers.epsilon, &epsilon_host)
.stream()
.memcpy_htod(&epsilon_host, &mut buffers.epsilon)
.map_err(|e| CfdError::gpu_error(&format!("Failed to copy epsilon to GPU: {}", e)))?;
self.kernel_manager.synchronize()?;
@@ -188,31 +188,33 @@ impl KEpsilonGpuModel {
};
unsafe {
self.kernel_manager
.stream()
.launch_builder(&func)
.arg(u)
.arg(v)
.arg(w)
.arg(&mut buffers.dudx)
.arg(&mut buffers.dudy)
.arg(&mut buffers.dudz)
.arg(&mut buffers.dvdx)
.arg(&mut buffers.dvdy)
.arg(&mut buffers.dvdz)
.arg(&mut buffers.dwdx)
.arg(&mut buffers.dwdy)
.arg(&mut buffers.dwdz)
.arg(&dx)
.arg(&dy)
.arg(&dz)
.arg(&(buffers.nx as i32))
.arg(&(buffers.ny as i32))
.arg(&(buffers.nz as i32))
.launch(config)
.map_err(|e| {
CfdError::gpu_error(&format!("Velocity gradients kernel launch failed: {}", e))
})?;
unsafe {
self.kernel_manager
.stream()
.launch_builder(&func)
.arg(u)
.arg(v)
.arg(w)
.arg(&mut buffers.dudx)
.arg(&mut buffers.dudy)
.arg(&mut buffers.dudz)
.arg(&mut buffers.dvdx)
.arg(&mut buffers.dvdy)
.arg(&mut buffers.dvdz)
.arg(&mut buffers.dwdx)
.arg(&mut buffers.dwdy)
.arg(&mut buffers.dwdz)
.arg(&dx)
.arg(&dy)
.arg(&dz)
.arg(&(buffers.nx as i32))
.arg(&(buffers.ny as i32))
.arg(&(buffers.nz as i32))
.launch(config)
.map_err(|e| {
CfdError::gpu_error(&format!("Velocity gradients kernel launch failed: {}", e))
})?;
}
}
self.kernel_manager.synchronize()?;
@@ -247,20 +249,22 @@ impl KEpsilonGpuModel {
};
unsafe {
self.kernel_manager
.stream()
.launch_builder(&func)
.arg(&buffers.k)
.arg(&buffers.epsilon)
.arg(&mut buffers.eddy_viscosity)
.arg(&self.constants.c_mu)
.arg(&(buffers.nx as i32))
.arg(&(buffers.ny as i32))
.arg(&(buffers.nz as i32))
.launch(config)
.map_err(|e| {
CfdError::gpu_error(&format!("Eddy viscosity kernel launch failed: {}", e))
})?;
unsafe {
self.kernel_manager
.stream()
.launch_builder(&func)
.arg(&buffers.k)
.arg(&buffers.epsilon)
.arg(&mut buffers.eddy_viscosity)
.arg(&self.constants.c_mu)
.arg(&(buffers.nx as i32))
.arg(&(buffers.ny as i32))
.arg(&(buffers.nz as i32))
.launch(config)
.map_err(|e| {
CfdError::gpu_error(&format!("Eddy viscosity kernel launch failed: {}", e))
})?;
}
}
self.kernel_manager.synchronize()?;
@@ -293,27 +297,29 @@ impl KEpsilonGpuModel {
};
unsafe {
self.kernel_manager
.stream()
.launch_builder(&func)
.arg(&buffers.eddy_viscosity)
.arg(&buffers.dudx)
.arg(&buffers.dudy)
.arg(&buffers.dudz)
.arg(&buffers.dvdx)
.arg(&buffers.dvdy)
.arg(&buffers.dvdz)
.arg(&buffers.dwdx)
.arg(&buffers.dwdy)
.arg(&buffers.dwdz)
.arg(&mut buffers.production)
.arg(&(buffers.nx as i32))
.arg(&(buffers.ny as i32))
.arg(&(buffers.nz as i32))
.launch(config)
.map_err(|e| {
CfdError::gpu_error(&format!("Production kernel launch failed: {}", e))
})?;
unsafe {
self.kernel_manager
.stream()
.launch_builder(&func)
.arg(&buffers.eddy_viscosity)
.arg(&buffers.dudx)
.arg(&buffers.dudy)
.arg(&buffers.dudz)
.arg(&buffers.dvdx)
.arg(&buffers.dvdy)
.arg(&buffers.dvdz)
.arg(&buffers.dwdx)
.arg(&buffers.dwdy)
.arg(&buffers.dwdz)
.arg(&mut buffers.production)
.arg(&(buffers.nx as i32))
.arg(&(buffers.ny as i32))
.arg(&(buffers.nz as i32))
.launch(config)
.map_err(|e| {
CfdError::gpu_error(&format!("Production kernel launch failed: {}", e))
})?;
}
}
self.kernel_manager.synchronize()?;
@@ -348,22 +354,24 @@ impl KEpsilonGpuModel {
};
unsafe {
self.kernel_manager
.stream()
.launch_builder(&func)
.arg(&buffers.k)
.arg(&buffers.epsilon)
.arg(&buffers.production)
.arg(&mut buffers.source_epsilon)
.arg(&self.constants.c_e1)
.arg(&self.constants.c_e2)
.arg(&(buffers.nx as i32))
.arg(&(buffers.ny as i32))
.arg(&(buffers.nz as i32))
.launch(config)
.map_err(|e| {
CfdError::gpu_error(&format!("Epsilon source kernel launch failed: {}", e))
})?;
unsafe {
self.kernel_manager
.stream()
.launch_builder(&func)
.arg(&buffers.k)
.arg(&buffers.epsilon)
.arg(&buffers.production)
.arg(&mut buffers.source_epsilon)
.arg(&self.constants.c1_epsilon)
.arg(&self.constants.c2_epsilon)
.arg(&(buffers.nx as i32))
.arg(&(buffers.ny as i32))
.arg(&(buffers.nz as i32))
.launch(config)
.map_err(|e| {
CfdError::gpu_error(&format!("Epsilon source kernel launch failed: {}", e))
})?;
}
}
self.kernel_manager.synchronize()?;
@@ -400,25 +408,27 @@ impl KEpsilonGpuModel {
};
unsafe {
self.kernel_manager
.stream()
.launch_builder(&func)
.arg(&mut buffers.k)
.arg(&mut buffers.epsilon)
.arg(&buffers.k_old)
.arg(&buffers.epsilon_old)
.arg(&buffers.production)
.arg(&buffers.source_epsilon)
.arg(&buffers.eddy_viscosity)
.arg(&dt)
.arg(&nu)
.arg(&self.constants.sigma_k)
.arg(&self.constants.sigma_e)
.arg(&(buffers.nx as i32))
.arg(&(buffers.ny as i32))
.arg(&(buffers.nz as i32))
.launch(config)
.map_err(|e| CfdError::gpu_error(&format!("Update kernel launch failed: {}", e)))?;
unsafe {
self.kernel_manager
.stream()
.launch_builder(&func)
.arg(&mut buffers.k)
.arg(&mut buffers.epsilon)
.arg(&buffers.k_old)
.arg(&buffers.epsilon_old)
.arg(&buffers.production)
.arg(&buffers.source_epsilon)
.arg(&buffers.eddy_viscosity)
.arg(&dt)
.arg(&nu)
.arg(&self.constants.sigma_k)
.arg(&self.constants.sigma_epsilon)
.arg(&(buffers.nx as i32))
.arg(&(buffers.ny as i32))
.arg(&(buffers.nz as i32))
.launch(config)
.map_err(|e| CfdError::gpu_error(&format!("Update kernel launch failed: {}", e)))?;
}
}
self.kernel_manager.synchronize()?;
@@ -436,7 +446,7 @@ impl KEpsilonGpuModel {
let mut eddy_viscosity_host = vec![0.0f32; n];
self.kernel_manager
.stream
.stream()
.memcpy_dtoh(&mut eddy_viscosity_host, &buffers.eddy_viscosity)
.map_err(|e| {
CfdError::gpu_error(&format!("Failed to copy eddy viscosity from GPU: {}", e))